Home / 2,075.41-2,863.85-1,224.64

Finding the Fourth Proportional to 2,075.41, 2,863.85 and 1,224.64

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Solution

The fourth proportional to 2,075.41, 2,863.85 and 1,224.64 is: 1,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.41 : 2,863.85 = 1,224.64 : x
  2. Step 2: Convert to fraction form
    2,075.41/2,863.85 = 1,224.64/x
  3. Step 3: Cross multiply
    2,075.41x = 2,863.85 × 1,224.64
  4. Step 4: Simplify right side
    2,075.41x = 3,507,181.17
  5. Step 5: Solve for x
    x = 3,507,181.17/2,075.41
  6. Step 6: Final answer
    x = 1,689.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.